South Korea Hit by New Cyberattack Wave, Exposing 38,490 Daishin Customers
Updated
Updated · TechCrunch · Oct 28
South Korea Hit by New Cyberattack Wave, Exposing 38,490 Daishin Customers
3 articles · Updated · TechCrunch · Oct 28
Summary
Daishin Securities, Mirae Asset Global Investments and crypto exchange Bithumb were hit in a fresh wave of cyberattacks on South Korean financial firms, about a month after earlier breaches.
38,490 Daishin customers had personal data exposed — including names, email addresses and mobile numbers — while Mirae and Bithumb reported separate incidents without confirming data theft.
South Korean officials are still investigating the latest breaches; security researchers had linked September's attacks to a suspected China-based hacker using the AI penetration-testing tool Artex.
Seoul's financial regulator has urged stronger cyber defenses and plans security checks on dozens of private-sector IT systems as attacks spread beyond banks to brokerages, crypto and government agencies.
Japan reported a GMO Internet cybersecurity incident a day earlier, adding to signs of a broader Asian threat landscape, though investigators have not established links between the cases.